Electric connections for carriage-lamps.



O. O. MATHEWS.-

ELECTRIC CONNECTIONS FOR CARRIAGE LAMPS. APPLIOATIOK II'LED MAR. 2. 1910.

978,608. Patented Dec". '13, 1910 WITNESSES.

ATTORNEY I unrriau) sT 'rEs PATENT OFFICE.

CHARLES O. MATHEWS, 0F MILFORD, CONNECTICUT, ASSIG-NOR OF ONE-HALF ,TO THE WHITE MANUFACTURING COMPANY, OF BRIDGEPDRT, CONNECTICUT, A CORPORA TION OF CONNECTICUT.

ELECTRIC CONNECTIONS FOR CARRIAGE-LAMPS.

Specification of Letters Patent.

Application filed March 2, 1910. Serial 110.5%,940. I

To all whom it may concern:

useful Improvements in Electric Connections for Carriage-Lamps; and I do declare thefollowing to be a full, clear, and exact description of the invention, such "pas will enable others skilled in the art to which it appertains to make and use the same.

My inventionrelates to certain new and useful improvements in'electric connections for carriage lamps, and has for its object simplicity of construction and facility with which lamps may be removed without severing any ofthe connections while at the same time the terminals of the connections that lead to the switch for opening and closing the circuit may be separated from the lamp terminals without actually cutting any of the connections. a 7

With these ends in view, myinvention consists in the details. of construction and combination of parts hereinafter fully set and-5 is a head having rearthereof an externa forth and then "particularly pointed out in the claims which conclude this description,

In the accompanying drawing Figure l is. an elevation, partly broken, of a lamp equipped, with my 1mprovementFig. 2v

:1 detail face view of the connecting head and with the closure removed, and Fig-3 adctail section at the line m}, w, of Fig. 2. b mllar numbers oi reference denote llke parts in the several figures oi the drawing.

.1, is any suitable coach lamp. equipped. with an incandescent li ht 2, and 3 are the terminal wires leading Irom said light;

4 is an internally threaded sleeve soldered or otherwise secured to the bodyof the lam and communicating with the interior thereo rejecting from the lytl-ireaded hollow hub 6 which is driven within the threaded sleeve 4. Within this head is a disk.'( of in- 'sulating' material, and blocks 8,9,ofbrass or thereof b means of'bindin having 'good conto the face oi said disk on opposite sides oft e axial center other suitable material that are" river; through sai blocks within said disk} i The terinilru l wires 3 from the lamp are screws 10, 11,

through which the wires 12 passfandthis is adapted to be driven upon the externally threaded portion It frequently" happens that it becomes nee essary to remove the lamp poses 'of repair or for other reasons, and

' this may be readily accomplished by merely removing the closure cap, allowing it. to remain suspended from the wires 12, a d then disconnectingsai'd. wires from the blocks 8, 9, whereupon the lamp may be removed.

- In the event that it becomes necessary to remove the incandescent light and the termi- Lnals thereof, the wires 3 are sim ly discoI1.-' ne'ctedfrom the blocks 8,, 9, Jan withdrawn. It will thus be seen thatv in no shouldbe actually severed connections are assured. Having thus described I claim as new andters Patent is 1. In a device of the character described,

and also that good said lamp and communicating 'terior there-of, ahead having an, externally threaded hollow :hub projecting from fits rear face, said hub being screwed within said Patented Dec. 13, 1910;-

s by means of the tected against dirt and inclement weather.

either for the parare then.

engaged upon the the. circular flange of the head,- thefwhole prqviding a cont nm,

I employ any suitable closure capxli (itv cap is internally threaded,as seen at 14, and

15 of the head so that the connections within the head may be pro-- instance is it necessary that, any of the wires my invention what 1 desire to secure by Letthe combination with an incandescent lamp, of an"'internally'threaded sleeve secured'to with the-insleeve, saidv head having a circular continudedflange extended of insulating maoblong blocks of ous central passage throu' hout its entire length for the reception of eed wires.

- 2. In a device of the character described, in combination with an incandescent lamp, 9. sleevesecured to the lamp and extending outwardly from one side thereof, a head having an outwardl extending hub at one end secured to said s eeve at the outer end of the latter, a flange extending outwardly from the front end of the head, an insulating disk Within the head having an opening which alines with the opening of the hub, blocks of conductivematerial carried by the disk on opposite sides of the "opening there- 'and formed with an openin Y which alines with the disk, opening, and eed wires connected to the blocks, two of the wires extending through the opening in the disk and the hub and the other Wires extending through the opening in the cover.

In testimony whereof I afiix my signature in presence of two Witnesses.

, CHARLES o. MATHEWS. Vitnesses i I I F. W. SMITH J12, M. T. LONGDEN.

of, acovei' secured to the flange'of the head 15 

